package com.lottery.im.module.tim.utils;

import android.app.Activity;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.support.annotation.RequiresApi;
import android.util.Log;
import com.lottery.im.MyApplication;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

/**
 * 文件工具类
 * 其实就是 FlieUtil 只不过已经存在，懒得去整理合并
 */
public class TimFileUtil {

  private static final String TAG = "TimFileUtil";
  private static String pathDiv = "/";
  private static File
      cacheDir = !isExternalStorageWritable() ? MyApplication.getInstance().getFilesDir()
      : MyApplication.getInstance().getExternalCacheDir();

  private TimFileUtil() {
    /* cannot be instantiated */
    throw new UnsupportedOperationException("cannot be instantiated");
  }

  /**
   * 创建临时文件
   *
   * @param type 文件类型
   */
  public static File getTempFile(FileType type) {
    try {
      File file = File.createTempFile(type.toString(), null, cacheDir);
      file.deleteOnExit();
      return file;
    } catch (IOException e) {
      return null;
    }
  }

  /**
   * 获取缓存文件地址
   */
  public static String getCacheFilePath(String fileName) {
    return cacheDir.getAbsolutePath() + pathDiv + fileName;
  }

  /**
   * 判断缓存文件是否存在
   */
  public static boolean isCacheFileExist(String fileName) {
    File file = new File(getCacheFilePath(fileName));
    return file.exists();
  }

  /**
   * 将图片存储为文件
   *
   * @param bitmap 图片
   */
  public static String createFile(Bitmap bitmap, String filename) {
    File f = new File(cacheDir, filename);
    try {
      if (f.createNewFile()) {
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        bitmap.compress(Bitmap.CompressFormat.PNG, 0, bos);
        byte[] bitmapdata = bos.toByteArray();
        FileOutputStream fos = new FileOutputStream(f);
        fos.write(bitmapdata);
        fos.flush();
        fos.close();
      }
    } catch (IOException e) {
      Log.e(TAG, "create bitmap file error" + e);
    }
    if (f.exists()) {
      return f.getAbsolutePath();
    }
    return null;
  }

  /**
   * 将数据存储为文件
   *
   * @param data 数据
   */
  public static void createFile(byte[] data, String filename) {
    File f = new File(cacheDir, filename);
    try {
      if (f.createNewFile()) {
        FileOutputStream fos = new FileOutputStream(f);
        fos.write(data);
        fos.flush();
        fos.close();
      }
    } catch (IOException e) {
      Log.e(TAG, "create file error" + e);
    }
  }

  /**
   * 判断缓存文件是否存在
   */
  public static boolean isFileExist(String fileName, String type) {
    if (isExternalStorageWritable()) {
      File dir = MyApplication.getInstance().getExternalFilesDir(type);
      if (dir != null) {
        File f = new File(dir, fileName);
        return f.exists();
      }
    }
    return false;
  }

  /**
   * 将数据存储为文件
   *
   * @param data 数据
   * @param fileName 文件名
   * @param type 文件类型
   */
  public static File createFile(byte[] data, String fileName, String type) {
    if (isExternalStorageWritable()) {
      File dir = MyApplication.getInstance().getExternalFilesDir(type);
      if (dir != null) {
        File f = new File(dir, fileName);
        try {
          if (f.createNewFile()) {
            FileOutputStream fos = new FileOutputStream(f);
            fos.write(data);
            fos.flush();
            fos.close();
            return f;
          }
        } catch (IOException e) {
          Log.e(TAG, "create file error" + e);
          return null;
        }
      }
    }
    return null;
  }

  /**
   * 从URI获取图片文件地址
   *
   * @param context 上下文
   * @param uri 文件uri
   */
  @RequiresApi(api = Build.VERSION_CODES.KITKAT) public static String getImageFilePath(
      Context context, Uri uri) {
    if (uri == null) {
      return null;
    }
    String path = null;
    final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
    if (isKitKat) {
      if (!isMediaDocument(uri)) {
        try {
          final String docId = DocumentsContract.getDocumentId(uri);
          final String[] split = docId.split(":");
          Uri contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
          final String selection = "_id=?";
          final String[] selectionArgs = new String[] {
              split[1]
          };
          path = getDataColumn(context, contentUri, selection, selectionArgs);
        } catch (IllegalArgumentException e) {
          path = null;
        }
      }
    }
    if (path == null) {
      String[] projection = { MediaStore.Images.Media.DATA };
      Cursor cursor = ((Activity) context).managedQuery(uri, projection, null, null, null);
      if (cursor != null) {
        int column_index = cursor
            .getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        return cursor.getString(column_index);
      }

      path = null;
    }
    return path;
  }

  /**
   * 从URI获取文件地址
   *
   * @param context 上下文
   * @param uri 文件uri
   */
  @RequiresApi(api = Build.VERSION_CODES.KITKAT) public static String getFilePath(Context context,
      Uri uri) {
    final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
    // DocumentProvider
    if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
      // ExternalStorageProvider
      if (isExternalStorageDocument(uri)) {
        final String docId = DocumentsContract.getDocumentId(uri);
        final String[] split = docId.split(":");
        final String type = split[0];

        if ("primary".equalsIgnoreCase(type)) {
          return Environment.getExternalStorageDirectory() + "/" + split[1];
        }

        // TODO handle non-primary volumes
      }
      // DownloadsProvider
      else if (isDownloadsDocument(uri)) {

        final String id = DocumentsContract.getDocumentId(uri);
        final Uri contentUri = ContentUris.withAppendedId(
            Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));

        return getDataColumn(context, contentUri, null, null);
      }
      // MediaProvider
      else if (isMediaDocument(uri)) {
        final String docId = DocumentsContract.getDocumentId(uri);
        final String[] split = docId.split(":");
        final String type = split[0];

        Uri contentUri = null;
        if ("image".equals(type)) {
          contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
        } else if ("video".equals(type)) {
          contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
        } else if ("audio".equals(type)) {
          contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
        }

        final String selection = "_id=?";
        final String[] selectionArgs = new String[] {
            split[1]
        };

        return getDataColumn(context, contentUri, selection, selectionArgs);
      }
    }
    // MediaStore (and general)
    else if ("lt".equalsIgnoreCase(uri.getScheme())) {
      return getDataColumn(context, uri, null, null);
    }
    // File
    else if ("file".equalsIgnoreCase(uri.getScheme())) {
      return uri.getPath();
    }

    return null;
  }

  /**
   * Get the value of the data column for this Uri. This is useful for
   * MediaStore Uris, and other file-based ContentProviders.
   *
   * @param context The context.
   * @param uri The Uri to query.
   * @param selection (Optional) Filter used in the query.
   * @param selectionArgs (Optional) Selection arguments used in the query.
   * @return The value of the _data column, which is typically a file path.
   */
  private static String getDataColumn(Context context, Uri uri, String selection,
      String[] selectionArgs) {
    Cursor cursor = null;
    final String column = "_data";
    final String[] projection = { column };
    try {
      cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
      if (cursor != null && cursor.moveToFirst()) {
        final int index = cursor.getColumnIndexOrThrow(column);
        return cursor.getString(index);
      }
    } finally {
      if (cursor != null) {
        cursor.close();
      }
    }
    return null;
  }

  /**
   * 判断外部存储是否可用
   */
  public static boolean isExternalStorageWritable() {
    String state = Environment.getExternalStorageState();
    if (Environment.MEDIA_MOUNTED.equals(state)) {
      return true;
    }
    Log.e(TAG, "ExternalStorage not mounted");
    return false;
  }

  public static boolean isMediaDocument(Uri uri) {
    return "com.android.providers.media.documents".equals(uri.getAuthority());
  }

  public static boolean isExternalStorageDocument(Uri uri) {
    return "com.android.externalstorage.documents".equals(uri.getAuthority());
  }

  /**
   * @param uri The Uri to check.
   * @return Whether the Uri authority is DownloadsProvider.
   */
  public static boolean isDownloadsDocument(Uri uri) {
    return "com.android.providers.downloads.documents".equals(uri.getAuthority());
  }

  public enum FileType {
    IMG,
    AUDIO,
    VIDEO,
    FILE,
  }
}
